title: Pheophorbide a is a specific probe for ABCG2 function and inhibition.
mesh_terms: D000070997:ATP Binding Cassette Transporter, Subfamily G, Member 2; D018528:ATP-Binding Cassette Transporters / Q000037:antagonists & inhibitors* / Q000502:physiology*; D001943:Breast Neoplasms / Q000188:drug therapy; D002166:Camptothecin / Q000031:analogs & derivatives* / Q000494:pharmacology; D002734:Chlorophyll / Q000031:analogs & derivatives* / Q000378:metabolism*; D019008:Drug Resistance, Neoplasm; D006801:Humans; D000077146:Irinotecan; D009363:Neoplasm Proteins / Q000037:antagonists & inhibitors* / Q000502:physiology*; D011804:Quinolines / Q000494:pharmacology; D019311:Staurosporine / Q000031:analogs & derivatives* / Q000494:pharmacology; D019772:Topotecan / Q000494:pharmacology
chemical_list: C116614:ABCG2 protein, human; D000070997:ATP Binding Cassette Transporter, Subfamily G, Member 2; D018528:ATP-Binding Cassette Transporters; D009363:Neoplasm Proteins; D011804:Quinolines; D002734:Chlorophyll; D000077146:Irinotecan; C054852:7-hydroxystaurosporine; D019772:Topotecan; D019311:Staurosporine; C032623:pheophorbide a; C402343:tariquidar; D002166:Camptothecin